This was recommended to us by our librarian - and, I must admit, I wasn't very impressed. But, our 2-year old son absolutely *loves* this book! And, frankly, the more you read it, the more charming it becomes. I'm here searching for a copy to add to our permanent collection, given its popularity at our house. I agree with a previous poster that the illustrations are not very refined, but they do a good job of conveying facial expressions - particularly of the sun - and my child really enjoys identifying "sad" and "happy" and "grouchy" as we read.